Compatibility: Panasonic Toughbook 31, 51 (MK3), 52, 53, 74 The Lind PA1580-3564 DC/DC Power Adapter delivers true continuous power to 120-watt Panasonic Toughbooks. The adapter powers the Toughbook from any 11-16 Vdc source using a hardwired cigarette lighter/accessory port input cable. Input Undervoltage Shutdown: Shutdown occurs if input voltage is less than 10.5 Vdc (typical) Output Overcurrent Shutdown: Shutdown occurs at approximately 9.25 Adc (typical) Thermal Protection: Yes Shutdown Restart Time: Unit resets automatically 10 seconds after fault is removed (typical) Operating Temperature: -20 to +40° C; Storage Temperature: -40 to +85° C